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instancy n.1.緊急,急迫。2.即時,瞬間。3.堅持。

instant

As it ' s proprietary , a large numbers of bibliography resource ca n ' t be provided to common readers of internet . along with the development of network technology , it has a instancy need to conversion marc format to the information that the browser can recognize . the language xml not only can expresses the metadata , but also can show the content of data . lt can provide individuation page layout Marc格式是目前圖書館館藏資源的主要表示格式,由于其專用性,使得目前大量的書目資源無法通過一般的搜索引擎向internet用戶提供,隨著網絡技術的不斷發展,迫切需要將marc格式的數據轉換成常用瀏覽器所能識別的信息,為大眾提供服務,可擴展標記語言xml不僅可以表達元數據,而且可以揭示數據的內容,提供個性化的頁面顯示,用xml語言對marc數據進行描述是解決這一問題的有效途徑,文章提供了marc數據的xml表示方法和實現途徑。

Both of the protection use high frequency distance or directional protection as main protection , and use distance protection adding current protection as reserving protection . this dispositon assured relay protection ' s four features : election , sensitivity , instancy and reliability 每套保護大多以高頻距離、高頻方向保護作為快速切除區內故障的主保護,而以距離保護和零序保護作為后備保護,保證了繼電保護的選擇性、靈敏性、快速性、可靠性。

The digital computer protction ' s reliability , sensitivity and instancy mainly depend on the digital filter and protection algorithm 微機保護的安全、可靠、靈敏、快速,關鍵取決于數字濾波和保護算法。